Powder Metallurgy and Metal Ceramics

, Volume 46, Issue 3–4, pp 175–181 | Cite as

High-temperature air oxidation of coatings based on eutectic (β-NiAl + γ-Re) alloys and NiAl intermetallide

  • V. E. Oliker
  • M. Yu. Barabash
  • E. F. Grechishkin
  • I. I. Timofeeva
  • T. Ya. Gridasova


High-temperature air oxidation (up to 1100°C) of detonation coatings made of NiAl intermetallide and eutectic (β-NiAl + γ-Re) alloys is examined with x-ray diffraction and electron microscopy. A substantial difference between the air oxidation mechanisms of these coatings is revealed. The key factor that governs the air oxidation of these coatings is the ratio between rates at which aluminum and nickel oxides are formed.


nickel aluminum intermetallide eutectic alloy high-temperature oxidation surface structure 


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • V. E. Oliker
    • 1
  • M. Yu. Barabash
    • 1
  • E. F. Grechishkin
    • 1
  • I. I. Timofeeva
    • 1
  • T. Ya. Gridasova
    • 1
  1. 1.Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKiev

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